Scientists in China have built a prototype high-speed maglev train that is theoretically capable of reaching speeds of up to 1,800 mph (2,900 km/h).
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Technically speaking, crystal glass is actually a Liquid that flows very slowly.
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Thomas Alva Edison patented almost 1,300 inventions in his lifetime!
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The oil used by jewelers to lubricate clocks and watches costs about $3,000 a gallon.
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Surgeons who grew up playing video games make 37 percent fewer mistakes.
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Jumbo jets use 4,000 gallons of fuel to take off.
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There's a Mumbai-based pizzeria that now delivers pizza by drone.
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